EN ISO 15985:2017

SLOVENSKI STANDARD
01-februar-2018
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Plastics - Determination of the ultimate anaerobic biodegradation under high-solids
anaerobic-digestion conditions - Method by analysis of released biogas (ISO
15985:2014)
Kunststoffe - Bestimmung der vollständigen anaeroben biologischen Abbaubarkeit unter
anaeroben High-Solid-Aufschlussbedingungen - Verfahren mittels Analyse des
freigesetzten Biogases (ISO 15985:2014)
Plastiques - Évaluation de la biodégradation anaérobie ultime dans des conditions de
digestion anaérobie à teneur élevée en solides - Méthode par analyse du biogaz libéré
(ISO 15985:2014)
Ta slovenski standard je istoveten z: EN ISO 15985:2017
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15985
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2017
EUROPÄISCHE NORM
ICS 83.080.01
English Version
Plastics - Determination of the ultimate anaerobic
biodegradation under high-solids anaerobic-digestion
conditions - Method by analysis of released biogas (ISO
15985:2014)
Plastiques - Évaluation de la biodégradation anaérobie Kunststoffe - Bestimmung der vollständigen anaeroben
ultime dans des conditions de digestion anaérobie à biologischen Abbaubarkeit unter anaeroben High-
teneur élevée en solides - Méthode par analyse du Solid-Aufschlussbedingungen - Verfahren mittels
biogaz libéré (ISO 15985:2014) Analyse des freigesetzten Biogases (ISO 15985:2014)
This European Standard was approved by CEN on 17 October 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15985:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 15985:2014 has been prepared by Technical Committee ISO/TC 61 “Plastics” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 15985:2017 by
Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2018, and conflicting national standards shall be
withdrawn at the latest by June 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15985:2014 has been approved by CEN as EN ISO 15985:2017 without any modification.

INTERNATIONAL ISO
STANDARD 15985
Second edition
2014-05-01
Plastics — Determination of the
ultimate anaerobic biodegradation
under high-solids anaerobic-digestion
conditions — Method by analysis of
released biogas
Plastiques — Évaluation de la biodégradation anaérobie ultime dans
des conditions de digestion anaérobie à teneur élevée en solides —
Méthode par analyse du biogaz libéré
Reference number
ISO 15985:2014(E)
©
ISO 2014
ISO 15985:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2014 – All rights reserved

ISO 15985:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Test environment . 2
6 Reagents . 2
7 Apparatus . 3
8 Procedure. 3
8.1 Preparation of the inoculum . 3
8.2 Preparation of test material and reference material . 4
8.3 Start-up of the test . 4
8.4 Incubation period . 4
8.5 Termination of the test . 5
9 Calculation and expression of results . 5
9.1 Calculation of gaseous carbon . 5
9.2 Calculation of the percentage biodegradation . 5
9.3 Calculation of loss in mass . 6
9.4 Expression of results . 6
10 Validity of results . 6
11 Test report . 6
Annex A (informative) Principle of test system . 8
Annex B (informative) Example of loss in mass determination . 9
Bibliography .10
ISO 15985:2014(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information.
The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 5, Physical-
chemical properties.
This second edition cancels and replaces the first edition (ISO 15985:2004). It also incorporates the
Technical Corrigendum ISO 15985:2004/Cor.1:2007.
The main changes are:
a) requirements regarding disintegration removed in the whole document;
b) units added where necessary;
c) bibliography updated.
iv © ISO 2014 – All rights reserved

ISO 15985:2014(E)
Introduction
New types of plastic are being developed in which biodegradability is a specifically sought-for
characteristic. These plastics and derived products can be added to or used as feedstock for biological
recycling and recovery in aerobic composting plants or anaerobic biogasification plants. To make sure
these plastics are fit for biological recycling, their biodegradability must be demonstrated, preferably
by standard test methods.
Standard test methods which determine the degree of biodegradation under aerobic, high-solids
conditions have been developed (e.g. ISO 14855-1 and ISO 14855-2). H
...